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Tech Note2026.10.06

The tools our agent built for itself were not canvas nodes

Geny agents build their own tools mid-chat, yet users could not see them. Making those tools visible overturned three of our assumptions along the way.

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Tech NoteThe GS Certification Diary2026.05.20

Replacing password hashing with argon2id on a live system (Part 2)

A GS certification security defect meant replacing unsalted SHA-256 password storage with argon2id — on a live system, without interrupting login.

Tech NoteThe Harness Diary2026.05.17

The model that wrote the answer was also grading it (Part 4)

When one model writes an answer and then judges it, generation method and pass criteria share a context. Splitting doing the work from accepting it.

Tech NoteThe Ontology Diary2026.05.12

We had put a multi-hour build in a cache (Part 3)

As builds stretched into hours we replicated job state into a shared cache. When it expired we could not recover cancellation and resume state.

Tech NoteThe Harness Diary2026.05.08

It installed, but we couldn't call it the same run (Part 3)

We packaged a workflow as a wheel and installed it elsewhere. Calling a tool exposed every assumption that only held inside the product.

Tech NoteThe GS Certification Diary2026.05.08

80 defect reports in GS certification taught me what a defect actually is (Part 1)

Three weeks of GS certification testing produced 80 defects, but fewer than half were code bugs. The rest were behaviours a user could not confirm.

Insight · Plateer AI Labs